Hanger device for concreting structural beams



Aug. 7, 1923. 1,463,967

s. l. PEDIGO HANGER DEVICE FOR CONCHETING STRUCTURAL BEAMS Fild Aug. 30.1922 Patented Aug. 7, 1923,

UNITED STATES PATENT orrics HANGER nnvron FOR conoan'rrnc STRUCTURALBEAMS;

Application filed August 30, 1922. Serial No.585,l36.

T 0 all whom it may concern.

Be it known that I, SANFORD 1. Promo, a citizen of the United States,residing at Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inHanger Devices for Concreting Structural Beams, of which the followingis a specification. e i

This invention relates to a hanger device for concreting structuralbeams, and the primary object of the invention is to provide hangers ofthe type stated, in a manner as hereinafter set forth, wherebytheconcrete form together with the concrete mass is supported andcarried by the structural beam itself during the process of concretion,thus obviating the necessity of providing the usual expensive shoringfor effecting suitable supporting means for the form and concrete;thereby also eliminatingthe obstructions necessitated by such supportingmeans and permitting of the continuance of work otherwise suspended orretarded until the obstructions referred to may be safely removed afterthe solidification of the concrete mass.

Further objects of the invention are to provide a device of thecharacter described, which requires no special materials except thoseembodied in the invention itself, which is simple in its constructionand arrangement, strong, durable and efficient in its use, readilyinstalled in position and conveniently removed. therefrom, andcomparatively inexpensive to manufacture.

To the accomplishment of these and such other objects as may hereinafterappear, the invention consists of the novel construction, combinationand arrangement of parts herein specifically described and illustratedin the accompanying drawing, wherein shown an embodiment of theinvention, but it is to be understood that changes, variations andmodifications may be resorted to which come within the scope of theclaims hereunto appended.

In the drawing forming a portion of this specification and wherein likenumerals of reference designate corresponding parts throughout theseveral views Figure 1 is a fragmentary top plan view of a concretedstructural beam supported in accordance with my invention.

Figure 2 is a transverse sectional. View thereof on line II II, Figure1.

prising the side members 3 Figures 3 and 4 are enlarged detail views ofthe reinforcement rod and tie bar, re-

form of the bar.

Referring in detail to the drawing 1 denotes a structural steel beamembedded in the concrete 2. The concrete 2 is confined by a form of theusual construction com and the bottom member 4,

An inverted Ushaped-reiriforcing rod 5 straddles the beam 1 and has eachof its vertically depending ends formed with screw threads 6 adapted forengagement with a threaded sleeve coupling 7 for the purpose to bedescribed. The ends of the rod 5 pass through a suitably aperturedreinforcing cross rod 8 which rests transversely on the upper ends ofthe sleeve couplings 7.

The lower ends of the couplings Tare in contact with the inner face ofthe bottom tie bar 10 is provided with apertures 12 which register withrespective apertures 9 formed in the bottom member 4 of the form.

A bolt 18 extends through each of the apertures 12 and 9 and threadablyengages respective sleeve couplings 7, thereby securing the tie bar 10in a position to support the form and concrete forming therein.

A horizontally disposed elongated ledger board 14 is positioned againstthe outer face of each of the side members 3 at the lower portionthereof and wedge members 15 are interposed between the ledger boards 14and the upturned vertical ends 11 of the tie bar 10.

T he ledger board 14 in conjunction with the wedge 15 will preventliability of the side members 3 spreading or bulging laterally whensustaining the pressure of the concrete thereagainst beforesolidification.

It will be noted that the rod 5 not only serves as a reinforcement forthe concrete but constitutes a hanger member for securing the tie bars10. Any number of hanger rods 5 with tie ars 10 may be spaced along thelength of the beam to best meet conditions found in practice.

The modified form of tie bar 16, shown in Figure 5, is identical inoperation and con struction as that referred to relative to thepreferred form of tie bar 10, with the exception that instead of theup-turned ends 11 of the latter, detachable pins 17 are providedpermitting of the adjustment of the pins 17 upon the tie bar 16, inapertures 18 provided therefor in the latter. The tie bar 16 is alsoformed throughout its length with a plurality of apertures 19 permittingof its use in connection with structural beams of varying widths, havingcorresponding reinforcing rod hangers engaging said tie bar 16throughthe apertures 19.

In the use of my improved device the reinforcing hanger rods 5 togetherwith the sleeve couplings 7 attached thereto, will become fixed in theconcrete as it solidifies and cannot be recovered or removed from theconcrete beam, but upon removal of the'bolts 13 the tie bars 10 may bereadily removed and used in subsequent operation.

What I claim is l. A supporting device for concreting structural beamscomprising a reinforcing hanger having depending portions provided withthreaded ends and straddling said beam, a sleeve coupling mounted oneach of said depending ends, a tie bar having vertically disposedmembers, and abolt eX- tending through said tie bar and engaging witheach of said sleeve couplings for securing the concrete form inposition.

2. A supporting device for concreting structural beams comprising areinforcing hanger having depending portions provided with threaded endsand straddling said beam, a sleeve coupling mounted on each of saiddepending ends, a tie bar having vertically disposed members, and a boltextending through said tie bar and engaging with each of saidssleevecouplings for adjustably securing the concrete form in position. I

3. A supporting device for concreting structural beams-comprising incombination with a concrete form, a vertical u-shaped hangerconstituting a reinforcement for the concrete and straddling said beam,said hanger provided with threaded ends, a min forcing cross rodpositioned below said beam, and provided with apertures for the passageof said threaded ends, a sleeve coupling threadably mounted on each ofsaid threaded ends, a tie bar positioned against the bottom of the saidform, bolts extending -through said tie bar and said form and engagingsaid sleeve couplings for detachably securing said tie bar in positionand a vertically disposed member carried at each end of said tie bar andadapted to be engaged for securing said form in position, said membersbeing adjustable on said tie bar.

In testimony whereof I aflix my signature.

SANFORD I. PEDIGO.

